Sub Rebellion takes you to the year 2139, a time when the earth is covered in water and battles are always fought at sea. Two factions are feuding, and one of them, The Alliance, deploys the experimental Chronos attack submarine to turn the tides of war. At the controls of this powerful sub, you must explore 20 expansive levels of undersea and sea-to-surface missions. The sub is equipped with new weapons and technologies that help you hunt down enemy subs, helicopters, and ships, in addition to tracking hidden items.